Yes, a charged one. You can adjust the temperature by how much nichrome or stainless wire there is between the allegator clips that are used to clip the power supply wires to the cutter wire.

A 12 volt DC charger also can be used You can flip between the two settings-on-the-fly (2 amp/10 amp) to move cutting faster or slower. Some chargers can get a bit hot and if it pulls too much current , it can stop (circuit breaker kick out) right in the middle of a wing cut....so best to cut a few scrap test wings as you get the hang of the "switch flipping"

I think most of those ideas have been tried in the forum and there is lots of info on those uses, but I don't remember anyone mentioning the drill pack as a supply.

What made me think of it was I was experimenting on a HHO hydrogen generator for the car and was looking for a way to vary the voltage (usually 12 volts) with the engine RPM and was linking the throttle to a drill trigger....which worked well.